Hydrocarbon-burner.



No. 760,729.l PATENTBD MAY 24, 19o4.u

JA.am(1A-15u13`l HYDROGARBON BURNER.. PPLIOTIDN FILED Nov. 24, 1903.

. 11o MODEL. i

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' UNITED STATES Patented May 24,1904.

PATENT OFFICE.

" JAMES e. cAMP, oF SACRAMENTO, CALIFORNIA.

HYI'JFIocAuaBoNfBURNER SPECIFICATIO forming -part of `Letters vPatent No. '760,7' 29, dated `May 24, 1904.v

Application filed November 24, 1903. Serial No. 182.520. (No model.)

To all whom it may concern:

Be it known that I, JAMES G. CAMIgfof Sacramento, in theeounty of Sacramento and State of California, have invented a certain new anduseful Improvement in Hydrocarbon- Burners, of Whichimprovement the following -is a specification.

The object of my invention is to provide an v apparatus for burning liquid fuel which shall of ready applicabilityl in connection with furfy be simple and inexpensive in its construction,

naces of different forms, and capable of conducting the combustion yof heavy oil under` vlow pressure, and with the `production vof a softpwhte flame which is practically smokeless and is devoid of the cutting action of that of high-pressure burners. The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a view,` partly inelevation and partly in longitudinal section, of a burner, illustrating an embodiment of my invention; Fig. 2, anend View vas seen from the right; Fig. 3, a horizontal section through the outlet portion of the fuel-discharge pipe, and Fig. 4 a transv verse section through the same on' the line a a of Fig. l.

In the practice of my inventionI provide'an ai r-discharge chamber which for convenience of construction is shown yas comprising a discharge-section l and a vvcoupling-section l, connected thereto by screw-threads'. rThe end tof the coupling-section farther from the-dis charge-section is closed by a cap 2, and an airsupply pipe 3, provided with a regulatingvalve 3a and leading from a low-pressure fanblower, which is not shown, is connectedto the coupling-section.

An oil-delivery pipe 4, having an outer end discharge opening, which is preferably, as

suitable manner, as by a nut 5 engaging a' thread on its periphery and bearing against a to the atmosphere.

to a coupling-socket 7, having a lateral nozzle, to which isconnected an oil-supplyvpipe 8, provided with va suitable regulating cock or valve 8*? and .leading Afrom a supply-tank Vwhich is located above the burner and is open An air-discharge blast-y .60 pipe 9, controlled by a cock or valve 9a, leads 1 from the air-supply pipe 3 to the outer end of the coupling-socket 7.

It Ywill be seen fromthe foregoing construction and arrangement the inner'or delivery 65 pipe 4, nozzle 4", and the openings of the couplingsocket 7 are all one line and form a continuous and unobstructed passage whereby it permits a lower pressure ofair to be used than is usual in this class of burners to atomize and force the oil into the oil-delivery pipe of the burner and out of the nozzle. Furthermore and a most important advantage of this construction of an unobstructed passage is that it enables an unskilled person to pass a rod or other cleaning device through-, out the entire length of the device from the Y point where the oil is fed into the burner to the nozzle 'Where the mixed oil and air leave,

thus permitting alll obstructions to be easily 8O detached and removed.

I have shown in the drawings the common form of elbow l0, connecting the, air-pipe 9` to the valve 9"; but any other common form and well-known construction could be substi- 35' trolling the air, can be located anywhere in the length of the pipe 9.

In the operation of the appliance oil is delivered by gravity from the supply tank through the supply-pipe 8 into the deliverypipe 4 and is forced through the same and-95 out of its discharge-nozzle 4 by a blast of air at low pressure-fas,` say, eight ounces-supplied from the fan-blast-supply pipe 3 into the inner en'd of the oil-delivery pipe 4 lthrough,

the discharge blast-pipe 9. The current of IOO v mingled oil and air which passes out of the discharge-nozzle, the degree of heat being yregulated as desired by a proper adjustment of the cock which controls the blast-discharge pipe.

Burners of the construction herein set forth have been regularly operated in practical shop service for about nine months last past, using heavy oil of the character produced on the Pacific coast, and have been found to satisfactorily and economically perform their intended function. The iame burns from about twelve inches beyond the discharge-nozzle to the end of a furnace eight feet in length, heating a charge of three thousand pounds of scrap in forty-live minutes, so that it can be worked like bread-dough and penetrating the iron and melting. slag and other impurities Without a cutting action,Which would Waste or burn the iron.

I claim as my invention and desire to secure by Letters Patentl. In a hydrocarbon-burner, the combination of afree and unobstructed oil-delivery pipe having an outer end discharge-opening, a surrounding air-discharge chamber, an airsupply pipe leading into the discharge-chamber, an air-discharge blast-pipe connected t0 the air-supply 0f the discharge-chamber and having a connection with the inner end of the oil-delivery pipe, an oil-supply pipe leading into and having its end substantially ilush with the oil-delivery pipe in advance of the air-discharge blast-pipe.

2.1n a hydrocarbon-burner, the combination of an air-discharge chamber, a cap closing one end thereof, a free and unobstructed oil-delivery pipe having an outer end discharge-opening adjoining the open end of the air-discharge chamber and extending therefrom through the cap of the chamber, an airsupply pipe leading into the airdischarge chamber, an air-discharge blast-pipe leading from the air-supply pipe to the' inner end of the oil-delivery pipe, a cock or valve controlling the air-discharge blast-pipe, and an oilsupply pipe leading into and having its end substantially flush with the oil-delivery pipe in advance of the air-discharge blast-pipe.

JAMES CAMP. Witnesses:

A. M. SEYMOUR, E. F. PFUND. 

